77152226 has 4 divisors (see below), whose sum is σ = 115728342. Its totient is φ = 38576112.

The previous prime is 77152213. The next prime is 77152241. The reversal of 77152226 is 62225177.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 65626201 + 11526025 = 8101^2 + 3395^2 .

It is a junction number, because it is equal to n+sod(n) for n = 77152192 and 77152201.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19288055 + ... + 19288058.

Almost surely, 2^77152226 is an apocalyptic number.

77152226 is a deficient number, since it is larger than the sum of its proper divisors (38576116).

77152226 is a wasteful number, since it uses less digits than its factorization.

77152226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38576115.

The product of its digits is 11760, while the sum is 32.

The square root of 77152226 is about 8783.6339859992. The cubic root of 77152226 is about 425.7122561843.

The spelling of 77152226 in words is "seventy-seven million, one hundred fifty-two thousand, two hundred twenty-six".